On the basis of the unique high peak power of the ATLAS-3000 system, the laser induced electron acceleration can be extended up to the multi-gigaelectronvolts range so that electron beams with a so far unrivalled combination of electron charge and phase space density will be available..
These beams are ideally suited for the generation of stunningly brilliant X-rays and the stimulation of electron beam driven acceleration. The biggest challenge here is the precise control of relativistic particle dynamics, which currently can only be examined experimentally due to incomplete simulation models. For this ETTF provides a broad range of diagnostic methods. The aim is the complete measurement and control of the phase space of generated electron bunches analogous to present possibilities of conventional accelerators but with disparate shorter times and higher density within only one single shot. In the process a beam quality that is able to stimulate a compact free-electron laser in the range of XUV should be achieved on the one hand and on the other hand tunable, narrowband electron bunches for the generation of hard X-rays through Thomson-backscattering (70 keV – multi-MeV) or betatron radiation (10-50 keV) shall be provided. This radiation is produced directly in the ETTF and is supposed to be used for examination of ultrafast phenomena in solid states and plasma as well as for phase contrast X-ray imaging in medicine.